<p>These are the best multi-functional portable USB and rechargeable battery operated speakers with subwoofer in the market.</p><img src="http://www.simplyglobo.com/media/wysiwyg/doc_pdf.png"> <a href="http://www.simplyglobo.com/media/downloadable/SV-S350P_Manual.pdf" taget="_new">User Manual Download</a> Learn More